LONG-TERM OBLIGATIONS (Details)	12 Months Ended				12 Months Ended										12 Months Ended				12 Months Ended			0 Months Ended		1 Months Ended	12 Months Ended				12 Months Ended		12 Months Ended					0 Months Ended				0 Months Ended								3 Months Ended	12 Months Ended			12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Aug. 13, 2014	Dec. 31, 2014 Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2013 Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2014 Loss on early extinguishment of debt [Member] Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2013 Loss on early extinguishment of debt [Member] Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Loss on early extinguishment of debt [Member] Interest Rate Swap [Member] Fair Value Hedging [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2014 Capital Lease Obligations [Member] USD ($)	Dec. 31, 2013 Capital Lease Obligations [Member] USD ($)	Dec. 31, 2014 Other Debt Obligations [Member] USD ($)	Dec. 31, 2013 Other Debt Obligations [Member] USD ($)	Dec. 31, 2014 Senior Notes Due April 1, 2020 Six and One Half Percent [Member] USD ($) factor	Dec. 31, 2013 Senior Notes Due April 1, 2020 Six and One Half Percent [Member] USD ($) factor	Mar. 27, 2012 Senior Notes Due April 1, 2020 Six and One Half Percent [Member]	Mar. 26, 2012 Senior Notes Due April 1, 2020 Six and One Half Percent [Member] USD ($)	Dec. 31, 2014 Senior Notes Due May 15, 2021 Six Percent [Member] USD ($) factor	Dec. 31, 2013 Senior Notes Due May 15, 2021 Six Percent [Member] USD ($) factor	Nov. 26, 2012 Senior Notes Due May 15, 2021 Six Percent [Member] USD ($)	Dec. 20, 2013 4% Convertible Senior Subordinated Notes due June 1, 2015	Jun. 04, 2009 4% Convertible Senior Subordinated Notes due June 1, 2015	Aug. 31, 2012 4% Convertible Senior Subordinated Notes due June 1, 2015 USD ($)	Dec. 31, 2014 4% Convertible Senior Subordinated Notes due June 1, 2015 USD ($) factor	Dec. 31, 2013 4% Convertible Senior Subordinated Notes due June 1, 2015 USD ($) factor	Dec. 31, 2012 4% Convertible Senior Subordinated Notes due June 1, 2015 USD ($)	Jun. 03, 2009 4% Convertible Senior Subordinated Notes due June 1, 2015 USD ($)	Dec. 31, 2014 Credit Agreement 2014 [Member] USD ($)	Aug. 13, 2014 Credit Agreement 2014 [Member] USD ($)	Dec. 31, 2012 2011 Credit Agreement [Member] USD ($)	Dec. 31, 2013 2011 Credit Agreement [Member] USD ($)	Dec. 31, 2014 Revolving Credit Facility [Member] USD ($)	Aug. 13, 2014 Revolving Credit Facility [Member] USD ($)	Dec. 31, 2013 Revolving Credit Facility [Member] USD ($)	May 16, 2013 Term Loan [Member] USD ($)	Dec. 31, 2014 Term Loan [Member] USD ($) factor	Aug. 13, 2014 Term Loan [Member] USD ($)	Dec. 31, 2013 Term Loan [Member] USD ($) factor	May 16, 2013 Term loan Euro EUR (€)	Dec. 31, 2014 Term loan Euro USD ($) factor	Aug. 13, 2014 Term loan Euro EUR (€)	Dec. 31, 2013 Term loan Euro USD ($) factor	Dec. 31, 2014 2014 Credit Agreement Additional LC Arrangements [Member] USD ($)	Dec. 31, 2013 2011 Credit Agreement Additional Arrangements [Member] USD ($)	Dec. 31, 2014 Bilateral LC Arrangements [Member] USD ($)	Dec. 31, 2013 Bilateral LC Arrangements [Member] USD ($)	Dec. 31, 2012 8% Senior Subordinated Notes due November 15, 2017 [Member] USD ($)	Dec. 31, 2014 8% Senior Subordinated Notes due November 15, 2017 [Member]	Dec. 31, 2012 8% Senior Subordinated Notes due November 15, 2017 [Member] USD ($)	Nov. 13, 2007 8% Senior Subordinated Notes due November 15, 2017 [Member] USD ($)	Dec. 31, 2013 10-7/8% Senior Notes due June 1, 2016 [Member] USD ($)	Dec. 31, 2012 10-7/8% Senior Notes due June 1, 2016 [Member] USD ($)	Sep. 28, 2012 10-7/8% Senior Notes due June 1, 2016 [Member]	Jun. 03, 2009 10-7/8% Senior Notes due June 1, 2016 [Member] USD ($)
Debt Instrument
Long-term Debt	$ 1,784,900,000												$ 42,000,000	$ 92,000,000	$ 300,000,000	$ 300,000,000		$ 300,000,000	$ 850,000,000	$ 850,000,000	$ 850,000,000				$ 125,000,000	$ 116,700,000		$ 172,500,000	$ 467,900,000			$ 495,300,000	$ 0		$ 117,700,000		$ 227,500,000		$ 340,400,000		$ 240,400,000		$ 154,900,000								$ 800,000,000				$ 300,000,000
Capital Lease Obligations											3,900,000	5,000,000
Debt, Long-term and Short-term, Combined Amount	1,788,800,000	1,976,700,000
Notes payable and current portion of long-term debt	152,500,000	86,800,000
Long-term debt, less current portion	1,636,300,000	1,889,900,000
Revolving line of credit available borrowing capacity																																		600,000,000
Long-term Line of Credit																																						230,000,000				200,000,000
Springing Covenant Threshold				30.00%
Debt Instrument Covenant Minimum Interest Coverage Ratio																													2.5
Debt Instrument Covenant Senior Secured Debt Leverage Ratio Maximum																													2.75
Loss on early extinguishment of debt	2,600,000	5,200,000	83,000,000																								6,500,000				1,900,000																			28,700,000			42,900,000
Repayments of Debt	1,801,800,000	571,800,000	1,533,000,000																								5,900,000									110,000,000				83,500,000										35,400,000			36,800,000
Debt, Weighted Average Interest Rate																													3.76%			3.66%			5.30%
Maximum amount of letters of credit available under the Credit Agreement																														400,000,000
Outstanding letters of credit	291,900,000	340,400,000																											0			54,200,000												30,400,000	3,100,000	261,500,000	283,100,000
Letters of Credit Maximum Available under Additional Facilities																														300,000,000
Percentage of capital stock of foreign subsidiary pledged as collateral for borrowings (as a percent)																														65.00%
Initial redemption price of debt instrument as a percentage of the principal amount (as a percent)															103.25%				103.00%																														104.00%
Interest rate of debt securities (as a percent)																	6.50%				6.00%							4.00%																							8.00%				10.875%
Long-Term Debt Maturity Value																									128,800,000
Write off of Deferred Debt Issuance Cost																											600,000																							9,300,000			6,100,000
Principal amount of debt extinguished																								64,000,000																												299,900,000
Early Repayment of Senior Debt																																																837,300,000					347,300,000
Interest Paid	109,600,000	114,800,000	156,000,000																					300,000																								2,700,000				10,600,000
Call premium paid for extinguishment of debt (as a percent)																																																						12.265%
Initial conversion rate of shares per $1000 principal amount of convertible notes (in shares)																						61.9685	61.5385
Principal amount used for debt instrument conversion ratio																									1,000
Conversion price of convertible notes (in dollars per share)																									$ 16.25			$ 16.25
Carrying value of the equity component of convertible debt																												54,300,000
Deferred tax liability on equity component of debt																												19,400,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed																								25.00%
Adjustments Convertible Debt, Subsequent Adjustments																								36,100,000
Redemption of convertible debt		(700,000)	19,100,000																					19,100,000
Interest expense on convertible debt																									13,500,000	12,600,000
Common Stock, Dividends, Per Share, Cash Paid	$ 0.05
Total cash paid on extinguishment of debt																																																34,600,000
Derivative Instruments, Gain (Loss) Recognized in Income, Net					0	0	32,300,000	0	0	16,000,000
Debt Instrument Market Quote															1.04500	1.06750			1.02000	1.03250					1.73392	2.62875											0.99000		1.00500		0.99500		1.00250
Long-term Debt, Fair Value															$ 314,000,000	$ 320,000,000			$ 867,000,000	$ 878,000,000					$ 217,000,000	$ 307,000,000											$ 225,000,000		$ 342,000,000		$ 239,000,000		$ 155,000,000